Multilayered Electrolyte-Supported SOFC Based on NEVZ-Ceramics Membrane

Abstract

SOFC batteries development is currently thriving in Russia (1). TVEL Fuel Company is a division of Rosatom State Corporation that promotes the SOFC technological platform, including cell, stacks, and integrated stack module for different applications. The technology development is based on R&D consortium between Institute of Solid State Physics Russian Academy of Sciences (ISSP RAS) with NEVZ-Ceramics (Novosibirsk, Russia) and includes materials synthesis and cost effective ceramic manufacturing methods for electrolyte supported flat cells with multilayered electrodes assembling for stack with metallic interconnectors from stainless steel Crofer 22H. Here we report on manufacturing and electrochemical tests of multilayered electrolyte-supported SOFC based on NEVZ-ceramics membrane. 10Sc1CeSZ membranes of 50x50 mm2 area and 250 microns thick were chosen as a support. NiO-10Sc1CeSZ and (La0.8Sr0.2)0.95MnO3-10Sc1CeSZ multilayered electrodes were deposited by print-screen technique. Electrochemical tests in two-chamber cell were evaluated in wide temperature range (700-900oC) and different oxygen atmospheres.